CN214778609U

CN214778609U - Conveyer belt structure

Info

Publication number: CN214778609U
Application number: CN202120518410.0U
Authority: CN
Inventors: 王愉克; 魏雯慧; 王彬克
Original assignee: Nanjing Jianke Machinery Co ltd
Current assignee: Nanjing Jianke Machinery Co ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2021-11-19
Anticipated expiration: 2031-03-11

Abstract

The utility model discloses a conveying belt structure, which comprises a left side plate, a right side plate, a conveying belt, a driving device, a material receiving box and a first slag trap, wherein the left side plate and the right side plate are arranged in parallel, the front end and the rear end of the left side plate and the right side plate are respectively provided with a driving pulley and a driven pulley in a rotating way, the driving pulley is driven by the driving device to rotate between the left side plate and the right side plate, the conveying belt is wound on the driving pulley and the driven pulley and is driven by the driving pulley to transmit, the left side and the right side of the first slag trap are protruded downwards to form a first limit structure, the first slag trap is arranged at the top parts of the left side plate and the right side plate, the first limiting structures on two sides of the first slag trap are used for preventing the first slag trap from moving in the left-right direction, the material receiving box is positioned above one end of the conveying belt, the material receiving box is used for receiving the workpiece and placing the workpiece on the conveying belt, and the material receiving box is in contact with one end of the first slag baffle plate. The utility model discloses a leakproofness is good, and the effectual metal fillings of avoiding the machining to produce drop on the conveyer belt.

Description

Conveyer belt structure

Technical Field

The utility model relates to a conveyer belt structure belongs to the transport field of work piece in the machine tool machining.

Background

After the processing of the workpiece is completed on the machine tool, the conveying of the workpiece is completed by adopting a conveying belt structure, the existing conveying belt structure comprises two side plates, a material receiving box, a conveying belt, a driving device and a slag baffle plate, the workpiece is conveyed to the conveying belt from the material receiving box, the workpiece is conveyed by the conveying belt, the slag baffle plate is directly placed at the tops of the two side plates and is supported by the two side plates, and because the slag baffle plate is not provided with a limiting structure, the slag baffle plate is easy to move at the tops of the side plates when in use, the whole sealing performance of the conveying belt structure is reduced, metal scraps generated in the workpiece processing process can fall onto the conveying belt along with the conveying belt, and the metal scraps are conveyed synchronously along with the conveying belt and need to be removed again after the workpiece is collected.

On the other hand, because there is the distance between conveyer belt and the curb plate, when the work piece was carried on the conveyer belt, drop from the gap between conveyer belt and the curb plate easily, for solving this problem, current conveyer belt structure respectively sets up a plastic slab in the opposite side on two curb plates, the plastic slab adopts the bolt lock to die and fix on the curb plate, lead to the position of plastic slab to be unadjustable, the distance between plastic slab and the conveyer belt is specific, can not adjust according to the work piece size of carrying, when the distance between plastic slab and conveyer belt was too big, less work piece can pass and drop from the conveyer belt from between plastic slab and the conveyer belt, and the distance between plastic slab and conveyer belt is too little, the plastic slab produces the influence to the conveying of conveyer belt again easily, prevent the conveying of conveyer belt even.

Disclosure of Invention

The utility model aims at providing a conveyer belt structure solves among the prior art slag trap and easily removes and the leakproofness reduces on the curb plate, and the metal fillings drop on the conveyer belt with the technical defect of work piece synchronous transport.

In order to solve the above problems, the utility model adopts the following technical proposal: the conveying belt structure comprises a left side plate, a right side plate, a conveying belt, a driving device, a material receiving box and a first slag trap, wherein the left side plate and the right side plate are arranged in parallel, a driving belt wheel and a driven belt wheel are respectively arranged at the front end and the rear end of the left side plate and the right side plate in a rotating mode, the driving belt wheel is driven by the driving device to rotate between the left side plate and the right side plate, the conveying belt is wound on the driving belt wheel and the driven belt wheel and driven by the driving belt wheel to transmit, the left side and the right side of the first slag trap protrude downwards to form a first limiting structure, the first slag trap is arranged at the top of the left side plate and the right side plate, the first limiting structures at the two sides of the first slag trap are used for preventing the first slag trap from moving in the left-right direction, the material receiving box is located above one end of the conveying belt and used for receiving a workpiece and placing the workpiece on the conveying belt, and the material receiving box is in contact with one end of the first slag trap. The utility model provides a be provided with first limit structure on the first slag trap, when using, the top of left side board and right side board is located between the first limit structure, and first limit structure prevents first slag trap to remove along left right direction at left side board and right side board top, improves the utility model discloses leakproofness in the use avoids only carrying the work piece on the conveyer belt because the removal of first slag trap produces the conveyer belt that the gap made the metal fillings drop, avoids follow-up metal fillings of clearing up again.

As the utility model discloses a further improvement still includes left depression bar and right depression bar, and left depression bar and right depression bar set up respectively on left side board and right side board to all be parallel with the conveyer belt, left depression bar and right depression bar can be respectively on left side board and right side board vertical migration, be used for adjusting the distance between left depression bar and right depression bar and the conveyer belt. The utility model discloses set up left depression bar and right pole, produce spacingly in the left and right sides of conveyer belt, prevent that the work piece on the conveyer belt from removing and dropping from the clearance between conveyer belt and left side board or the right side board along left right direction in transportation process, because the utility model provides a left depression bar and right depression bar can be adjusted from top to bottom, adjust the distance between both and conveyer belt to suitable value, make this distance unlikely to too big and make left depression bar and right depression bar lose the locating part to the work piece usefulness, also avoid influencing the transport of conveyer belt because distance undersize between both and conveyer belt, this real and novel adjustment that the distance of well left depression bar and right depression bar and conveyer belt can be according to the high adaptability of the work piece of carrying.

As a further improvement of the utility model, left depression bar and right depression bar are made by the aluminium alloy, a plurality of left adjustment tanks and right adjustment tank have been seted up on left side board and the right side board respectively, left side adjustment tank and right adjustment tank run through the left and right sides of left side board and right side board respectively, the length direction of left side adjustment tank and right adjustment tank all is unanimous with vertical direction, left depression bar is installed on left side board by the left adjusting bolt who passes left adjustment tank, right depression bar is installed on right side board by the right adjusting bolt who passes right adjustment tank, not hard up left adjusting bolt and right adjusting bolt are used for adjusting left depression bar and right depression bar from top to bottom respectively. The utility model discloses well left adjusting bolt reciprocates in left adjustment tank, drives reciprocating of left depression bar, screws up left adjusting bolt, with left depression bar locking on the left side board, realizes the fixed of left depression bar, the upper and lower adjustment mode of right depression bar is the same with the upper and lower adjustment mode of left depression bar.

As a further improvement, the utility model also comprises a conveyer belt supporting plate which is arranged between the driving belt wheel and the driven belt wheel and used for upwards supporting the conveyer belt. The utility model discloses set up the conveyer belt backup pad, upwards support the conveyer belt, avoid the conveyer belt because the gravity of work piece and downwarping, influence the transport of work piece.

As a further improvement, the utility model also includes adjustment mechanism, adjustment mechanism includes two adjusting screws, two adjusting screws set up respectively in the tip of left side board and right side board along the fore-and-aft direction, left side board and right side board are used for installing driven pulley's one end and have opened left waist shape hole and right waist shape hole respectively along the fore-and-aft direction, left waist shape hole and right waist shape hole are passed respectively at driven pulley's axis of rotation both ends to respectively with two adjusting screw thread fit, driven pulley's axis of rotation is used for adjusting the elasticity degree of conveyer belt along with the relative left side board of adjusting screw's rotation and right side board back-and-forth movement. The utility model discloses an adjustment driven pulleys and driving pulley distance within a definite time and the tensioning degree of adjustment conveyer belt make the conveyer belt be in the best state of carrying the work piece.

As the utility model discloses a further improvement still includes second slag trap, and the downward protrusion in the left and right sides of second slag trap forms second limit structure, and the second slag trap sets up in the top of left side board and right side board to the second limit structure of second slag trap both sides is used for preventing it to move in the left and right directions, and second slag trap and first slag trap are located the front and back both sides of material receiving box respectively. The utility model discloses set up the second and keep off the slag plate, the left side board and the right side board of the opposite side of butt joint magazine seal, and further prevention metal fillings drop on the conveyer belt.

As the utility model discloses a further improvement still includes the delivery wheel backplate, and both ends are connected with left side board and right side board respectively about the delivery wheel backplate to the delivery wheel backplate is located driven pulleys's top. The utility model discloses set up the band pulley backplate, protect driven pulleys, and further prevention metal fillings drop on the conveyer belt.

As a further improvement of the utility model, the first slag trap is provided with an elongated slot running through the upper part and the lower part along the length direction thereof, a cover plate is arranged in the elongated slot, and the cover plate is made of transparent materials and is used for observing the conveying of the workpieces on the conveying belt. The utility model discloses a set up transparent apron, the convenience is observed the work piece in work piece transportation process.

As a further improvement of the utility model, the border of elongated slot is provided with the layer board, layer board and first slag trap integrated into one piece, and the border of apron is located the layer board to the apron is installed on the layer board by screw detachable. The utility model discloses set up the layer board, make things convenient for the installation of apron.

As a further improvement of the utility model, still include the speed reducer cover, drive arrangement includes driving motor and speed reducer, and driving motor installs on the speed reducer, and the speed reducer is installed on left side board or right side board and with driving pulley's rotation axis connection, and speed reducer cover detachable installs on the speed reducer, and driving motor and speed reducer motor are located the speed reducer cover. The utility model discloses set up the speed reducer cover, drive arrangement is located the speed reducer cover, protects drive arrangement.

To sum up, the beneficial effects of the utility model are that: the utility model discloses a leakproofness is good, and the effectual metal fillings of avoiding the machining to produce drop on the conveyer belt, the utility model discloses still have simple structure, convenient to use's advantage.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a first exploded perspective view of the present invention.

Fig. 3 is a second exploded perspective view of the present invention.

Wherein: 1. a left side plate; 2. a right side plate; 3. a conveyor belt; 4. a drive device; 5. a material receiving box; 6. a first slag trap; 7. a driving pulley; 8. a driven pulley; 9. a first limit structure; 10. a left compression bar; 11. a right compression bar; 12. a left adjustment tank; 13. a right adjustment groove; 14. a conveyor belt support plate; 15. adjusting screws; 16. a left waist-shaped hole; 17. a right waist-shaped hole; 18. a second slag trap; 19. a second limit structure; 20. conveying wheel guard plates; 21. a long groove; 22. a cover plate; 23. a support plate; 24. the speed reducer cover.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings.

Example 1

The conveyor belt structure shown in fig. 1, fig. 2 and fig. 3 comprises a left side plate 1, a right side plate 2, a conveyor belt 3, a driving device 4, a material receiving box 5 and a first slag trap 6, wherein the material receiving box 5 in the embodiment is the prior art, the left side plate 1 and the right side plate 2 have the same structure and are arranged in parallel, the lower part of the material receiving box 5 is detachably mounted on the top ends of the left side plate 1 and the right side plate 2 by bolts, a driving pulley 7 and a driven pulley 8 are respectively rotatably arranged at the front end and the rear end of the left side plate 1 and the right side plate 2, two ends of a rotating shaft of the driving pulley 7 are respectively rotatably connected with the front ends of the left side plate 1 and the right side plate 2 by bearings, the driving pulley 7 does not rotate relative to the rotating shaft thereof, i.e. the driving pulley 7 rotates synchronously with the rotating shaft thereof, two ends of the rotating shaft of the driven pulley 8 are respectively connected with the rear ends of the left side plate 1 and the right side plate 2, and the driven pulley 8 rotates relative to the rotating shaft thereof, one end of a driving pulley 7 is connected with a driving device 4 and is driven by the driving device 4 to rotate between the left side plate 1 and the right side plate 2, a conveying belt 3 is wound on the driving pulley 7 and the driven pulley 8 and is driven by the driving pulley 7 to transmit between the driving pulley 7 and the driven pulley 8, the left side and the right side of a first slag trap 6 protrude downwards to form a first limiting structure 9, namely the longitudinal section of the first slag trap 6 is in a shape of Jiong in the embodiment, the first slag trap 6 is arranged on the top of the left side plate 1 and the right side plate 2 to be buckled at the top end of the left side plate 1 and the right side plate 2, wherein the first limiting structures 9 on the two sides of the first slag trap 6 are used for preventing the first slag trap 6 from moving in the left-right direction, a material receiving box 5 is positioned above one end of the conveying belt 3 and used for receiving a workpiece and placing the workpiece on the conveying belt 3, the material receiving box 5 is in contact with one end of the first slag trap 6 to ensure that no gap is formed between the material receiving box 5 and the first slag trap 6, the metal chips are prevented from falling onto the conveying belt from between the metal chips and the conveying belt to be conveyed together with the workpiece.

The speed reducer cover 24 is preferably provided in this embodiment, wherein the driving device 4 includes a driving motor and a speed reducer, the driving motor is mounted on the speed reducer, an output shaft of the driving motor is connected with an input shaft of the speed reducer motor, the speed reducer is mounted on the left side plate 1 or the right side plate 2, an output shaft of the speed reducer is connected with a rotating shaft of the driving pulley 7, the speed reducer cover 24 is detachably mounted on the speed reducer by a plurality of bolts, the driving motor and the speed reducer motor are located in the speed reducer cover 24, and the speed reducer cover 24 in this embodiment can protect the driving device.

Example 2

The embodiment is a further improvement on the basis of the embodiment 1, compared with the embodiment 1, the embodiment is provided with a left pressure lever 10 and a right pressure lever 11, the left pressure lever 10 and the right pressure lever 11 are respectively arranged on the left side plate 1 and the right side plate 2 and are parallel to the conveying belt 3, the left pressure lever 10 and the right pressure lever 11 can respectively vertically move on the left side plate 1 and the right side plate 2 and are used for adjusting the distance between the left pressure lever 10 and the conveying belt 3 and the right pressure lever 11, so that the distance between the left pressure lever 10 and the conveying belt 3 and the distance between the right pressure lever 11 and the conveying belt 3 are proper, and the workpiece is prevented from falling from a gap between the conveying belt 3 and the left side plate 1 or the right side plate 2 in the conveying process of the workpiece.

In the embodiment, the left compression bar 10 and the right compression bar 11 are preferably made of aluminum profiles, the left side plate 1 and the right side plate 2 are respectively provided with a plurality of left adjustment grooves 12 and right adjustment grooves 13, the left adjustment grooves 12 and the right adjustment grooves 13 respectively penetrate through the left side and the right side of the left side plate 1 and the right side plate 2, the length directions of the left adjustment grooves 12 and the right adjustment grooves 13 are consistent with the vertical direction, the left adjustment grooves 12 and the right adjustment grooves 13 are preferably provided with waist-shaped holes, the left compression bar 10 is mounted on the left side plate 1 by a left adjustment bolt penetrating through the left adjustment grooves 12, the right compression bar 11 is mounted on the right side plate 2 by a right adjustment bolt penetrating through the right adjustment grooves 13, the left adjustment bolt and the right adjustment bolt are loosened to be used for vertically adjusting the left compression bar 10 and the right compression bar 11 respectively, and the left compression bar 10 and the right compression bar 11 are locked on the left side plate 1 and the right side plate 2 by screwing the left adjustment bolt and the right adjustment bolt respectively, the left pressure lever 10 and the right pressure lever 11 are fixed. The structure of the rest of this embodiment is the same as that of embodiment 1, and embodiment 1 may be referred to specifically, and details are not repeated in this embodiment.

Example 3

This embodiment is a further improvement to embodiment 2, compare in embodiment 2, still be provided with conveyer belt backup pad 14 in this embodiment, conveyer belt backup pad 14 is located between driving pulley 7 and the driven pulley 8 for upwards support conveyer belt 3, the left and right ends of conveyer belt backup pad 14 in this embodiment are connected with left side plate 1 and right side plate 2 respectively (if adopt the bolt can dismantle the connection, or welding etc.) to conveyer belt backup pad 14 is located between upper and lower two-layer conveyer belt, laminates with the lower surface of upper conveyer belt, avoids conveyer belt 3 because receive the effect of work piece gravity and crooked downwards in the use. The structure of the rest of this embodiment is the same as that of embodiment 2, and embodiment 2 may be referred to specifically, and details are not repeated in this embodiment.

Example 4

The present embodiment is a further improvement on the basis of embodiment 3, and compared with embodiment 3, the present embodiment further includes an adjusting mechanism, the adjusting mechanism includes two adjusting screws 15, the two adjusting screws 15 are respectively disposed at the end portions of the left side plate 1 and the right side plate 2 along the front-back direction, one ends of the left side plate 1 and the right side plate 2 for mounting the driven pulley 8 are respectively opened with a left waist-shaped hole 16 and a right waist-shaped hole 17 along the front-back direction, both ends of a rotating shaft of the driven pulley 8 respectively pass through the left waist-shaped hole 16 and the right waist-shaped hole 17 and are respectively in threaded fit with the two adjusting screws 15, the rotating shaft of the driven pulley 8 moves back and forth relative to the left side plate 1 and the right side plate 2 along with the rotation of the adjusting screws 15, the distance between the driving pulley 7 and the driven pulley 8 is changed for adjusting the tightness degree of the conveying belt 3, so that the conveying belt 3 is in a proper tensioning degree, the conveying of the workpieces is more facilitated. The structure of the rest of this embodiment is the same as that of embodiment 3, and embodiment 3 may be referred to specifically, and details are not repeated in this embodiment.

Example 5

This embodiment is a further improvement of embodiment 4, and compared with embodiment 4, this embodiment is further provided with a second slag baffle 18, the left and right sides of the second slag baffle 18 protrude downward to form second limit structures 19, that is, the longitudinal section of the second slag baffle 18 in this embodiment is "Jiong", the second slag baffle 18 is disposed on the top of the left side plate 1 and the right side plate 2, and the second limit structures 19 on the two sides of the second slag baffle 18 are used to prevent it from moving in the left and right directions, in this embodiment, the second slag baffle 18 is mounted in the same manner as the first slag baffle 6 during use, the second slag baffle 18 and the first slag baffle 6 are respectively located on the front and rear sides of the material receiving box 5, and gaps between the second slag baffle 18 and the first slag baffle 6 and the material receiving box 5 are uniform and seamless, so as to further improve the sealing performance.

The preferred conveying wheel backplate 20 that still is provided with of this embodiment, the left and right ends of conveying wheel backplate 20 adopt bolt detachable to be connected with left side board 1 and right side board 2 respectively, and conveying wheel backplate 20 is located the top of driven pulley 8, and second baffle 18 is located the top of conveying wheel backplate 20. The structure of the rest of this embodiment is the same as that of embodiment 4, and embodiment 4 may be referred to specifically, and details are not repeated in this embodiment.

Example 6

This embodiment is a further improvement of embodiment 4, compared with embodiment 4, the first slag trap 6 in this embodiment has a long groove 21 penetrating through the upper and lower parts thereof along the length direction thereof, a cover plate 22 is installed in the long groove 21, and the cover plate 22 is made of a transparent material, for example, a transparent PVC plastic plate or the like is used to make the cover plate 22 for observing the conveying of the workpiece on the conveyor belt 3.

In the embodiment, a supporting plate 23 is selectively arranged at the edge of the long groove 21, the supporting plate 23 and the first slag trap 6 are integrally formed, the edge of the cover plate 22 is located on the supporting plate 23, and the cover plate 22 is detachably mounted on the supporting plate 23 by screws. The structure of the rest of this embodiment is the same as that of embodiment 4, and embodiment 4 may be referred to specifically, and details are not repeated in this embodiment.

Parts which are not specifically described in the above description are prior art or can be realized by the prior art. The specific embodiments of the present invention are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. All equivalent changes and modifications made according to the contents of the claims of the present invention should be regarded as the technical scope of the present invention.

Claims

1. Conveyer belt structure, its characterized in that: comprises a left side plate (1), a right side plate (2), a conveying belt (3), a driving device (4), a material receiving box (5) and a first slag trap (6), wherein the left side plate (1) and the right side plate (2) are arranged in parallel, the front end and the rear end of the left side plate (1) and the rear end of the right side plate (2) are respectively and rotatably provided with a driving belt wheel (7) and a driven belt wheel (8), the driving belt wheel (7) is driven by the driving device (4) to rotate between the left side plate (1) and the right side plate (2), the conveying belt (3) is wound on the driving belt wheel (7) and the driven belt wheel (8) and is driven by the driving belt wheel (7), the left side and the right side of the first slag trap (6) are downwards protruded to form a first limiting structure (9), the first slag trap (6) is arranged at the top of the left side plate (1) and the right side plate (2), and the first limiting structures (9) at the two sides of the first slag trap (6) are used for preventing the first slag trap from moving in the left and right directions, the material receiving box (5) is positioned above one end of the conveying belt (3) and used for receiving the workpiece and placing the workpiece on the conveying belt (3), and the material receiving box (5) is in contact with one end of the first slag trap (6).

2. The conveyor belt structure of claim 1, wherein: still include left depression bar (10) and right depression bar (11), left depression bar (10) and right depression bar (11) set up respectively on left side board (1) and right side board (2) to all be parallel with conveyer belt (3), left depression bar (10) and right depression bar (11) can be respectively on left side board (1) and right side board (2) vertical migration for adjust the distance between left depression bar (10) and right depression bar (11) and conveyer belt (3).

3. The conveyor belt structure of claim 2, wherein: left side depression bar (10) and right depression bar (11) are made by the aluminium alloy, a plurality of left adjustment tank (12) and right adjustment tank (13) have been seted up on left side board (1) and right side board (2) respectively, left side adjustment tank (12) and right adjustment tank (13) run through the left and right sides of left side board (1) and right side board (2) respectively, the length direction of left side adjustment tank (12) and right adjustment tank (13) all is unanimous with vertical direction, left side depression bar (10) are installed on left side board (1) by the left adjusting bolt who passes left adjustment tank (12), right depression bar (11) are installed on right side board (2) by the right adjusting bolt who passes right adjustment tank (13), not hard up left adjusting bolt and right adjusting bolt are used for adjusting left depression bar (10) and right depression bar (11) from top to bottom respectively.

4. A conveyor belt structure as claimed in claim 3 wherein: the conveying belt device further comprises a conveying belt supporting plate (14), wherein the conveying belt supporting plate (14) is located between the driving belt wheel (7) and the driven belt wheel (8) and used for upwards supporting the conveying belt (3).

5. The conveyor belt structure of claim 1, wherein: still include adjustment mechanism, adjustment mechanism includes two adjusting screw (15), two adjusting screw (15) set up respectively in the tip of left side board (1) and right side board (2) along the fore-and-aft direction, left side board (1) and right side board (2) are used for installing the one end of driven pulley (8) and open respectively along the fore-and-aft direction has left waist shape hole (16) and right waist shape hole (17), left waist shape hole (16) and right waist shape hole (17) are passed respectively to the axis of rotation both ends of driven pulley (8), and respectively with two adjusting screw (15) screw-thread fit, the axis of rotation of driven pulley (8) is used for adjusting the elasticity degree of conveyer belt (3) along with the relative left side board (1) of rotation of adjusting screw (15) and right side board (2) back-and-forth movement.

6. The conveyor belt structure of claim 1, wherein: still include second slag trap (18), the left and right sides downward protrusion of second slag trap (18) forms second limit structure (19), and second slag trap (18) set up in the top of left side board (1) and right side board (2) to second limit structure (19) of second slag trap (18) both sides are used for preventing it to remove in left and right sides direction, and second slag trap (18) and first slag trap (6) are located the front and back both sides of material receiving box (5) respectively.

7. The conveyor belt structure of claim 6, wherein: the conveying wheel is characterized by further comprising a conveying wheel protection plate (20), the left end and the right end of the conveying wheel protection plate (20) are connected with the left side plate (1) and the right side plate (2) respectively, and the conveying wheel protection plate (20) is located above the driven belt wheel (8).

8. The conveyor belt structure of any one of claims 1 to 7, wherein: the first slag trap (6) is provided with a long groove (21) which penetrates through the upper part and the lower part along the length direction, a cover plate (22) is arranged in the long groove (21), and the cover plate (22) is made of transparent materials and used for observing the conveying of workpieces on the conveying belt (3).

9. The conveyor belt structure of claim 8, wherein: the edge of the long groove (21) is provided with a supporting plate (23), the supporting plate (23) and the first slag trap (6) are integrally formed, the edge of the cover plate (22) is positioned on the supporting plate (23), and the cover plate (22) is detachably mounted on the supporting plate (23) through screws.

10. The conveyor belt structure of claim 1, wherein: still include gear box cover (24), drive arrangement (4) include driving motor and speed reducer, and driving motor installs on the speed reducer, and the speed reducer is installed on left side board (1) or right side board (2) and with the rotation axis connection of driving pulley (7), and gear box cover (24) detachable installs on the speed reducer, and driving motor and speed reducer motor are located gear box cover (24).